Improved fulminating compound



, tions'by weight:

UNITED STATES I ATENT OF ICE;

HENRY B. STOCKWELL, OF BROOKLYN, NEW YORK IMPROVED FULMlNATlNG-COMPOUND,

Specilicatiou forming part of Letters Patent No. 4S,4;60, dated J une 27, 1865; antcdated June 17, 18 65.

1'0 all whom it may concern Be it known that I, HENRYB. STOCKWELL, of N0. 3 Jeti'ersou Park, in the cityot' Brooklyn, and State of New York, have invented a new Fulminating Compound; and I do hereby declare that the following is-a full, clear, and exact statement of the component parts ot'and manner of compounding and using the same;

The object of my invention is to obtaina fulminating compound that will ignite by percussiou and produce a greatfiame, buthave less explosive force than most of the fulmihating compounds heretofore produced. The purpose for which this compound is more particularly intended is the lighting of illuminating-gas as it issues from burners, through the instrumentality of Va percussion device which 18 set in operation by the act ofturning the I cock to allow the issue of gas.

The compound is composed of the following ingredients, in about the following propor- 4 f ulminatin g mercury, four (4) parts; saltpeter, three(3) parts; black sulphw' ret of antimony. two (2) parts; 'Freuch chalk, one 1) part. v 3

These are alhwell mixed together in a pulverized state, 'and might, beusedin thatstate,

but for convenience of using it in connection with a gas-burner for the purpose of ii ghtin g gas by percussion,

as herein above mentioned, I prefer to make it in the form of sticks, for which purpose I first moisten it with sufiicient water to form a shit paste, and in this condition I forin and,..of uniform thickness between two flat surfaces, one of which has a move meutin formed are cut into pieces of suitable length, which are allowed to dry and are afterward varnished with an alcoholic solution of shellac or any other suitable varnish which is'combustihle, and which will give the exteriors of the sticks therequisite degree of cohesiveness or tenacity.

GEO. REED.

make it intosticks, which I roll into a round parallel relation to thefother'; I'I'he sticks thus The proportions which I have herein above 

